Advertisement
Check LED
Check Code
LED2
LED1
RED
GREEN
times
times
8
8
times
times
E6
or
9
9
None
times
times
10
10
times
times
6
Lit
times
7
Lit
times
GHH15010
Abnormal point and
detection method
hot water temp. thermistor（TH4）
tion or short circuit detected
°C or less
continued for 1 second 10
minutes onwards after start of
compressor operation
°C or less
continued for 1 second at all
times
discharge temp. thermistor(TH1)
tion or short circuit detected
°C or less
continued for 1 second 10
minutes onwards after start of
compressor operation
°C or less
continued for 1 second at all
times
defrost temp. thermistor(TH2）
tion or short circuit detected
°C or less
continued for 1 second at start
of compressor operation
°C or more
continued for 1 second at all
times
ambient temp. thermistor(TH3)
tion or short circuit detected
°C or less
detected for 1 second at start of
compressor operation
°C or less
continued for 1 second at all
times
Abnormality of DC voltage
bus voltage abnormality
temperature
temperature thermistor at 80°C
or more detected for 1 second
Case
(1) Defective connector (CN664)
connection
-
(2) Defective (TH4)
a) Thermistor (TH4) disconnec-
tion
b) Thermistor (TH4) short circuit
(3) Defective outdoor inverter p.c.
board
(1) Defective connector (CN641)
connection
-
(2) Defective (TH1)
a) Thermistor (TH1) disconnec-
tion
b) Thermistor (TH1) short circuit
(3) Defective outdoor inverter
p.c. board
(1) Defective connector (CN641)
connection
-
(2) Defective (TH2)
a) Thermistor (TH2) disconnec-
tion
b) Thermistor (TH2) short circuit
(3) Defective outdoor inverter
p.c. board
(1) Defective connector (CN643)
connection
(2) Defective (TH3)
-
a) Thermistor (TH3) disconnec-
tion
b) Thermistor (TH3) short circuit
(3) Defective outdoor inverter
p.c. board
(1) Defective outdoor inverter
p.c. board
(1) Defective fan motor
(2) Defective outdoor inverter
p.c. board
11
Judgment and action
(1) Connect connector (CN664)
(2) Check the resistance value
and temperature of thermistor
(TH4).
a) Replace thermistor (TH4)
b) Replace thermistor (TH4)
(3) Replace the outdoor inverter
p.c. board
(1) Connect connector (CN641)
(2) Check the resistance value
and temperature of the
thermistor (TH1).
a) Replace thermistor (TH1)
b) Replace thermistor (TH1)
(3) Replace the outdoor inverter
p.c. board
(1) Connect connector (CN641)
(2) Check the resistance value
and temperature of the
thermistor (TH2).
a) Replace thermistor (TH2)
b) Replace thermistor (TH2)
(3) Replace the outdoor inverter
p.c. board
(1) Connect connector (CN643)
(2) Check the resistance value
and temperature of the
thermistor (TH3).
a) Replace thermistor (TH3)
b) Replace thermistor (TH3)
(3) Replace the outdoor inverter
p.c. board
(1) Replace the outdoor inverter
p.c. board
(1) Defective fan motor
(2) Replace outdoor inverter p.c.
board
Advertisement
